Doug Engelbart's presentation at the ACM Conference on the History of Personal Workstations, Palo Alto, CA, January 9-10, 1986, in which he details the evolutionary development of his seminal work, including
NLS design rationale, implementation and usage by his team, leading up to the
1968 demo and beyond. Includes historic photos plus 20 minutes of footage excerpted from the historic demo. See also Doug's paper
Workstation History and The Augmented Knowledge Workshop, published in the conference proceedings, and later edited by conference organizer Adele Goldberg into her book A History of Personal Workstations, ACM Press, New York, 1988.